A221947 - cp's OEIS frontend

A221947 Smallest number k (different from a power of 2) such that A006577(n*k) = A006577(n) + A006577(k), or 0 if no such number exists.

n	a(n)
1	3
2	3
3	423
4	3
5	81
6	423
7	75
8	3
9	0
10	81
11	11003
12	423
13	155
14	75
15	35
16	3
17	239
18	0
19	151
20	81
21	23
22	11003
23	21
24	423
25	21
26	155
27	341
28	75
29	201
30	35
31	75
32	3
33	21
34	239
35	15
36	0
37	113
38	151
39	21
40	81
41	635
42	23
43	1131
44	11003
45	2017
46	21
47	75
48	423
49	1267
50	21
51	75
52	155
53	253
54	341
55	151
56	75
57	7931
58	201
59	75
60	35
61	69
62	75
63	213
64	3
65	1073
66	21
67	423
68	239
69	61
70	15

[3, 3, 423, 3, 81, 423, 75, 3, 0, 81, 11003, 423, 155, 75, 35, 3, 239, 0, 151, 81, 23, 11003, 21, 423, 21, 155, 341, 75, 201, 35, 75, 3, 21, 239, 15, 0, 113, 151, 21, 81, 635, 23, 1131, 11003, 2017, 21, 75, 423, 1267, 21, 75, 155, 253, 341, 151, 75, 7931, 201, 75, 35, 69, 75, 213, 3, 1073, 21, 423, 239, 61, 15]

cp's OEIS Frontend

A221947 Smallest number k (different from a power of 2) such that A006577(n*k) = A006577(n) + A006577(k), or 0 if no such number exists.

Table of values

List of values